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| 型号： | STLS2F02-LP |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROPROCESSOR, PBGA452 |
| 封装： | 27 X 27 MM, 2.90 MM HEIGHT, ROHS COMPLIANT, HFCBGA-452 |
| 文件页数： | 1/49页 |
| 文件大小： | 706K |
| 代理商： | STLS2F02-LP |
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Preliminary Data
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
January 2009
Rev 1
1/49
1
STLS2F02-LP
Loongson 2F
high performance 64-bit superscalar MIPS microprocessor
Features
■ 64-bit superscalar architecture
■ 800 MHz clock frequency
■ Single/double precision floating-point units
■ New streaming multimedia instruction set
support (SIMD)
■ 64 Kbyte instruction cache, 64 Kbyte data
cache, on-chip 512 Kbyte unified L2 cache
■ On chip DDR2-667 and PCI-X controller
■ 2.9 W @ 800 MHz power consumption:
– Best in class for power management
– Voltage/frequency scaling
– Standby mode support
– L2 cache disable/enable option
■ Leading edge 90 nm process technology
■ 27x27 heat spreader flip-chip BGA package
■ MIPS based (compatible with MIPSIII)
instruction set
Description
The STLS2F02-LP is a MIPS based 64-bit
superscalar microprocessor, able to issue four
instructions per clock cycle among six functional
units: two integer, two single/double-precision
floating-point, one 64-bit SIMD and one load/store
unit.
The micro architecture is organized with nine
stages of pipeline and support of dynamic branch
prediction.
The memory hierarchy is composed by the first
level of 64 Kbyte 4-way set associative caches for
instructions and data, the second level of
512 Kbyte unified 4-way set associative cache
and the memory management unit with table
lookside buffer.
The Loongson microprocessor family is the
outcome of a successful collaboration started in
2004 between STMicroelectronics and the
Institute of Computing Technology, part of the
Chinese Academy of Science. Loongson
microprocessors were co-developed by
STMicroelectronics and the Institute of
Computing Technology to address all the
applications requiring high level of performance
and low power dissipation.
Compared to the STLS2E02 processor, the
STLS2F02-LP has an enhanced architecture
providing higher performances, reduced power
consumption, integrated DDR2 memory controller
and PCI-X bus interface.
HFCBGA452 (27x27x2.9mm)
Table 1.
Device summary
Order code
Package
Packing
STLS2F02-LP
HFCBGA452 (27x27x2.9 mm)
Tray
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